Machinery & Equipment Co. (M&E) buys and sells Used Sigma Mixers for heavy-duty mixing and kneading of high-viscosity materials such as adhesives, sealants, rubber compounds, polymers, doughs, pastes, chemicals, and other dense products. Also known as sigma blade or double-arm mixers, these machines typically feature two counter-rotating blades in a horizontal mixing trough and may include stainless steel construction, jacketed bowls, tilt or bottom discharge, vacuum capability, and variable-speed drives. M&E handles sigma mixers from manufacturers such as Baker Perkins, Readco, Teledyne Readco, Jaygo, Ross, Paul O. Abbé, and others, in a range of batch capacities and configurations.